我制作了 whit 小部件,它运行完美,按下按钮就像一个魅力,但我需要将活动连接到这个小部件。我还需要在这些按钮事件上调用活动方法。我搜索了很多帖子,每个人都在制作简单的小部件,只是显示一些文本。
如果活动没有运行,则需要启动活动,如果活动已经运行,则需要连接。
这是 AppWidgetProvider 类:
import android.app.PendingIntent;
import android.appwidget.*;
import android.content.ComponentName;
import android.content.Context;
import android.content.Intent;
import android.hardware.Camera.PreviewCallback;
import android.widget.RemoteViews;
public class MusicWidget extends AppWidgetProvider {
private static final String PLAY_CLICKED = "MusicWidget.PLAY";
private static final String PREV_CLICKED = "MusicWidget.PREV";
private static final String NEXT_CLICKED = "MusicWidget.NEXT";
@Override
public void onUpdate(Context context, AppWidgetManager appWidgetManager,
int[] appWidgetIds) {
RemoteViews remoteViews;
ComponentName watchWidget;
remoteViews = new RemoteViews(context.getPackageName(),
R.layout.widget_layout);
watchWidget = new ComponentName(context, MusicWidget.class);
remoteViews.setOnClickPendingIntent(R.id.wbtnPlay,
getPendingSelfIntent(context, PLAY_CLICKED));
remoteViews.setOnClickPendingIntent(R.id.wbtnPrevious,
getPendingSelfIntent(context, PREV_CLICKED));
remoteViews.setOnClickPendingIntent(R.id.wbtnNext,
getPendingSelfIntent(context, NEXT_CLICKED));
appWidgetManager.updateAppWidget(watchWidget, remoteViews);
}
@Override
public void onReceive(Context context, Intent intent) {
super.onReceive(context, intent);
System.err.println("RECEIVE!");
if (PLAY_CLICKED.equals(intent.getAction())) {
} else if (PREV_CLICKED.equals(intent.getAction())) {
} else if (NEXT_CLICKED.equals(intent.getAction())) {
}
}
protected PendingIntent getPendingSelfIntent(Context context, String action) {
Intent intent = new Intent(context, getClass());
intent.setAction(action);
return PendingIntent.getBroadcast(context, 0, intent, 0);
}
}